OpenBSD: Defining a new loopback interface
As hinted at in lo(4)
, you may create /etc/hostname.lo1
:
inet 127.0.0.2 255.0.0.0
This will create the lo1
interface when the boot process runs /etc/netstart
. With that file in place, you may also set up the interface without rebooting through
$ doas sh /etc/netstart lo1
The interface is reported as
lo1: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 32768
index 4 priority 0 llprio 3
groups: lo
inet 127.0.0.2 netmask 0xff000000
by ifconfig
.
For further info, see hostname.if(5)
, netstart(8)
and ifconfig(8)
.